Photovoltaic arrays with overlapped bypass diodes have dissimilar characteristics in comparison to normal-bypass diodes arrays. Investigation of partially shaded PV arrays with overlapped bypass diodes is more intricate because of the presence of shared PV cells linked antiparallel to bypass diodes. Calculating the power-peaks of partially shaded PV arrays is time consuming due to the need for simulating the entire power curve which could take hours as demonstrated in recent studies. While there are deterministic power peaks estimators for PV arrays with normal diodes, there is still no available tool to calculate the power peaks of overlapped PV arrays. In this paper, a deterministic modelling approach for the power peaks of overlapped bypass diodes photovoltaic arrays is developed. By using three developed rules, a set of mathematical equations, based on LAMBERT W function, are derived to estimate the power peaks of overlapped bypass diodes PV arrays. The developed method is fast and capable of locating the power peaks accurately with no need to model the entire Power-Voltage curve. The efficiency of the proposed modeling approach is validated utilizing Simulink and experimentally.

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重叠光伏阵列功率峰值的基于规则的模型

与正常旁路二极管阵列相比，具有重叠旁路二极管的光伏阵列具有不同的特性。由于存在与旁路二极管反向并联连接的共享PV电池，因此对带有重叠旁路二极管的部分阴影PV阵列的研究更加复杂。由于需要模拟整个功率曲线，因此计算部分阴影PV阵列的功率峰值非常耗时，如最近的研究所示。尽管对于具有常规二极管的PV阵列有确定的功率峰值估算器，但仍然没有可用的工具来计算重叠的PV阵列的功率峰值。本文提出了一种确定的建模方法，用于重叠的旁路二极管光伏阵列的功率峰值。通过使用三个已开发的规则，一组数学方程式，基于LAMBERT W函数的推导，可以估算出重叠的旁路二极管PV阵列的功率峰值。所开发的方法快速并且能够准确地定位功率峰值，而无需对整个功率-电压曲线建模。利用Simulink并通过实验验证了所提出建模方法的效率。